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M7.7 earthquake, Mexico, 1978-11-29

MagnitudeM7.7ms

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Depth18 km

Time (UTC)1978-11-29 19:52

Rank in 19782 / 90among M6+

Rank since 1900264 / 14,458

Energy vs an M6×355approx.

2 km ESE of San Agustín Loxicha, Mexico · 16.01, -96.59

M6.5+ within 300 km (largest first)

1928 M8.0M8.0

1907 M7.8M7.8

1978 M7.7M7.7

1931 M7.6M7.6

1957 M7.6M7.6

1928 M7.5M7.5

1999 M7.5M7.5

1908 M7.5M7.5

1928 M7.4M7.4

1937 M7.4M7.4

1965 M7.4M7.4

1995 M7.4M7.4

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.2 1975-04-23	1975-04-23 11:14	11 km	18 km SSW of Marquelia, Mexico
M6.8 1973-08-28	1973-08-28 09:50	84 km	8 km N of San Felipe Tílpam, Mexico
M6.8 1972-11-13	1972-11-13 04:43	14 km	70 km SE of Santa Gertrudis Miramar, Mexico
M6.4 1968-11-28	1968-11-28 10:36	20 km	121 km SSE of Santa Gertrudis Miramar, Mexico
M7.3 1968-08-02	1968-08-02 14:06	30 km	9 km WSW of La Humedad, Mexico
M7.4 1965-08-23	1965-08-23 19:46	14 km	4 km NW of Santa María Zapotitlán, Mexico
M6.6 1959-05-24	1959-05-24 19:17	65 km	6 km SSW of San Pedro Coxcaltepec Cántaros, Mexico
M7.6 1957-07-28	1957-07-28 08:40	38 km	8 km ENE of Apantla, Mexico
M6.1 1957-04-10	1957-04-10 05:12	15 km	81 km S of Santa María Chico Ometepec, Mexico
M6.3 1954-05-13	1954-05-13 14:46	62 km	6 km ESE of San Pedro Quiatoni, Mexico

Energy ratio uses the rule that one magnitude unit is about 32 times the energy. Magnitudes and locations are USGS values and can differ from national agencies. Older records are less complete and less precise.